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Brand: Manley
12780-1 Manley
Manley 12780-1 is a Severe Duty Intake Valve for Big Block Chevy.
Currently out of stock
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12780-1 Manley
Intake Valve Severe Duty Big Block Chevy.
Diameter: 2.300''.
Stem Diameter: 5/16'' (0.3110'').
Overall Length (Stock): 5.244''.
Stainless Steel.
1/pkg.
Type: Intake Valve NK-844 Material.
Head Diameter: 2.300''.
Stem Diameter: 5/16'' / 0.3110''.
Installed Height: Stock.
Overall Length: 5.244''.
Tip Length: 0.250''.
Underhead Angle / Radius: 10° x 3/8''.
Margin: 0.050''.
Seat Width: 0.080''.
Top of Head: 5° Dish.
Weight / Grams: 126.
Key Features
Specifications
- Length
- 7.0 lb
- Width
- 2.5 lb
- Height
- 2.5 lb
- Weight
- 0.25 lb
- ASIN
- B00AZ6MWO6
- UPC
- 807298045863
- Ships From
- United States
- Brand
- Manley
Frequently Asked Questions
About 12780-1 Manley
01 What is the diameter of the valve?
The diameter of the valve is 2.300''.
02 What is the stem diameter?
The stem diameter is 5/16'' (0.3110'').
03 What is the overall length of the valve?
The overall length of the valve is 5.244''.
04 What is the ASIN for this product?
The ASIN for this product is B00AZ6MWO6.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 807298045863.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Aug 29.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

